JPS58184423A - Evaporation type burner - Google Patents

Abstract

PURPOSE:To correct an error due to unevenness in component electric parts, by mounting a voltage converter to a combustion regulator for an evaporation burner in a dryer. CONSTITUTION:Through energization of a motor 17 for turning a heating bowl 20 and a variable speed motor 41 for a blower 46, the heating bowl 20 and the blower 46 are driven. A constant quantity of kerosine is normally pumped up by an electromagnetic pump 25, and the kerosine is dropped on a diffusing body 22 for evaporation. In which case, the variable speed motor 41 and a burner controlling box 28 are coupled together through a cord 42, and an electromagnetic valve 24 and the box 28 are linked together through a cord 30, whereby the opening and closing degree of the electromagnetic valve 24 is adjusted by said box 28, and simultaneously, a voltage for controlling the variable speed motor 41 also tunes and varies. A wrong adjustment, however, is sometimes made due to unevenness in a product such as electric parts, and thereby a voltage converter is adjusted by turning a converting control 29 attached to the burner box 28.

Description

[Detailed description of the invention] The present invention relates to an evaporative burner.

In conventional vaporizing burners of drying devices, the amount of fuel supplied is adjusted by changing the degree of opening and closing of a valve, or the amount of fuel supplied is adjusted by changing the rotation of a pump that supplies fuel. When using this method, the fuel supply amount cannot be changed linearly, so the width of the blue flame of the vaporizing burner becomes extremely small.

Therefore, a blower is attached to the vaporizing burner, and the blower is rotated by a variable motor.Also, an electromagnetic pump, for example, is used to pump a certain amount of kerosene from the fuel tank, and the kerosene pumped by the pump is sent to the electromagnetic valve using a pulse signal. By opening and closing the valve, both the amount of kerosene and the amount of combustion air can be changed approximately linearly. The condition for this device is that the performance of the electrical parts, valves, pumps, etc. obtained must be consistent; if there are variations in performance, the supply of kerosene and the rotation of the blower will not be synchronized, so blue flames and No. In such a case, it is sufficient to be able to adjust one or both of them using a regulator such as a voltage converter, and adjust the flame while observing the flame with the naked eye.

Therefore, the present invention provides a vaporizing burner that supplies kerosene and combustion air to a heating bowl rotated by a motor for combustion. A structure of a vaporizing burner characterized in that a motor adjustment mechanism is provided to adjust the rotation of a variable angle motor of a blower that sends air, and a regulator such as a voltage converter is attached to one or both of the adjustment mechanisms. The gist of this paper is as follows.

To explain with the drawings, the embodiment shows an example in which a vaporizing burner is attached to a grain drying device, and (1) is an upper humidity control tank, and a funnel is located at the bottom of the tank (1).
, and the lower end of the funnel +21 +21 is connected to a flowing drying chamber (31 (-L end of 31). As shown in the figure, the tank (1) and the drying chamber (3) can be separated and connected by an elevator or the like.A hot air supply chamber is provided between the pair of left and right drying chambers +31 and +31. (4) is formed, and at the lower end of the hot air exhaust chamber (5+ (51) is formed on the outside of the drying chamber (31+3+), the drying chamber +3 f3) is a rotary valve that adjusts the air from which the grains fall. (When 61F61 is installed, the lower side of 61+61 is surrounded by a receiving gutter (7) whose central part is the lowest, and the receiving gutter (center of force)
A screw conveyor (8) is installed horizontally on the upper surface, and the grains conveyed by the conveyor (8) are lifted by an elevator (not shown) and stacked on top of the unhulled rice in the tank (1). . Fig. 2 is a cross-sectional view taken from ■-■ in Fig. 1, and a ventilation pipe (9) is provided at one end of the hot air supply chamber (4), and the discharge side, which is the end of the hot air exhaust chamber (51+51), is A wind exhaust pipe 0 (to) is attached. A fan 01) is installed inside the wind exhaust pipe 00, and when the fan (11) rotates, the second
As shown by the arrow in the figure, the drying room (31+31 circulates hot air. The fan 01) is extremely powerful, and is capable of blowing at least 1 to 2 m3 (8) of air per ton of unhulled rice. It is something. A gasification burner is installed inside the ventilation tube i9) as shown in FIG. At the center position inside the ventilation tube (19), there is either a ventilation tube 021 formed with a smaller diameter than the inner diameter of the ventilation tube (9) or a hanging tool ( 13). The blower cylinder O2 is a horizontally oriented cylinder, and a thin small-diameter portion 04) is attached to the front side. (15)
is an opening at the tip of the small diameter portion 041. A vertical mounting plate 06) is provided inside the blower tube θ2, and a blower tube (motor 07 having an outer diameter much smaller than the inner diameter of the blower tube 12) is fixed to the center of the rear side of the mounting plate 06). Said motor Q7+
A plurality of through holes 081 are bored in the mounting plate 0[fl between the outer surface of the blower tube Oz and the inner surface of the blower tube Oz. The rotating shaft O1 of the motor (171) extends horizontally forward from the center of the small diameter portion Oa and protrudes further forward than the opening Q9 at the tip, and the heating bowl Q■ is fixed to the tip. (i.e., toward the motor a7), and the small diameter portion 0
41 is surrounded by a gap Qυ. At the tip of the rotating shaft (11), there is a position corresponding to the bottom of the heating bowl (2).
Attach a diffuser e'IJ whose diameter increases as it reaches the bottom of the heating bowl (as it goes forward). (23+ is a pipe for supplying kerosene, which extends forward inside the small diameter part Q41, and its tip is opened at the diffuser G! The fuel tank is further connected to the fuel tank via the electromagnetic pump. Electromagnetic pump 0ω rotates (vibrates) at 50 Hz, 501-]'Z
It is a pump that always pumps the same amount of kerosene from the fuel tank aS. The punishment is the dryer main control box. e (to) is a burner control box and has a conversion knob (21).
Powder and solenoid valve Q4 are the code (to) and the box (
2 seconds and electromagnetic pump C are connected by code 01). +3Z is a moisture meter, (33) is a motor that rotates the elevator. The base (34) of the small diameter part Q4.
is fixed to the front end of the blower tube (12), or fixed thereto so as to sandwich the base of the outer tube I3S. Outer cylinder 435)
largely surrounds the outside of the heating bowl t2■. A connecting blower tube (G) is completely fitted into the rear part of the blower tube Oa in FIG. 3. The rear end of the blower tube is opened in a separated shape to form an opening +371, which is fitted between the connecting parts of the blower tube (to) formed to have a slightly larger diameter than the opening '3n. Insert and secure with screw C3 [present]. A vertical mounting plate (41) is fixed inside the connecting blower tube (1), and a variable motor (41) is attached to this. The motor (41)
The code (42) and the motor (171 code (4)
The shaft is connected to the burner box +28+, and rotating the knob f29+ changes the rotation of the motor (41). The variable motor (41) also has a much smaller diameter than the inner diameter of the blower tube, and a ventilation passage (44) is formed around it. The variable motor (4υ is installed back to back with the motor 0η, and its rotation axis (451 is installed at the rear,
A cylinder feeder (46) is fixed to the rotating shaft (45). The blower F461 is located inside the connected blower tube, and its rear part is surrounded by a rear wall (471), with a suction eye opening in the center of the rear wall (471).
) is a combustion plate, 60 is a ceramic heater, and 15 is a combustion chamber. Figure 4 is a circuit diagram for adjusting the air volume of the vaporizing burner, where 6 (9) is a waveform shaping circuit, 64) is an amplifier, 5 is a pulse voltage converter, 60 is a switching circuit, 6η is an integrating circuit, The 6 mark is a buffer circuit, the hammer is an increase +1 @ circuit, 1
6o) is a motor control circuit.

Figure 5 is a block diagram, where 輯)・ is the input circuit section, [2
is the set temperature call button, (63) is the stake-in button, +64
) is the drying button, haze is the discharge button, I [DH rotary switch for setting the amount of filling, (6η is the rotary switch for setting the grain type, (Foundation) is the rotary switch for setting the target moisture content, (the shout is a group of sensors) 60) is the AC/DC converter, σB is the hot air temperature sensor, 6 is the outside air temperature sensor, 63) is the transmitter circuit, (IL is the control and comparison calculation unit, ff5Hj is the amplification unit, σe is the display unit, (7η (79) is the fuel electromagnetic knob (lube output smoothing circuit), (A) is the conversion knob (voltage converter converted by 29+, cover) is the flame sensor, +82 is the flame sensor. The amplification adjustment circuit and the older sister are the motor rotation speed control circuits.

Next, we will discuss the effect.

The figure is omitted, or when undried rice is supplied to the loading port of the elevator, the undried rice is fried by the elevator and supplied into the humidity control tank ill, and then falls under its own weight to the down-flow drying chamber (
3) (3) Inside and funnel! 2) Inside i21 and humidity control tank (1
) is full. When the switch is turned on in this state, the motor that rotates the fan (11) installed inside the exhaust pipe 00) is energized and the fan (11) rotates at a furious speed.
) is rotated to supply drying air of at least 1 to 2 C per ton of paddy to the unhulled rice. In addition, a motor Q71 that rotates the heating bowl (2) and a blower (46
0's variable motor (1) is also energized to rotate the heating bowl (2) and the blower (46). Therefore, when the kerosene supplied from the kerosene supply pipe c23) is dropped onto the diffuser, which rotates at 2500 revolutions per minute, it is agitated as if blown away by centrifugal force and reaches the inner surface of the heating bowl I2■. It is vigorously stirred and becomes like mist in the gap e1). There is a blower (4
6) The air blown from the inlet + 481 - ventilation path (44) - small diameter part 4) inside - gap (221) is blown, and the air that matches the claws of kerosene is blown, so it does not become foggy. The resulting kerosene turns into scum, becomes a completely mixed gas in the gasification chamber (49), and is injected into the combustion chamber 62 outside (forward) from the combustion plate 150). Therefore, if the ceramic heater 51) is energized, it will easily ignite and burn like ordinary gas.

Therefore, the bowl heated by that flame! 2) Make the outside surface red hot. Then, the kerosene in the heating bowl (the gap 01 on the inner surface of 2α) becomes more and more actively turned into scum, and finally burns as a blue flame.

Therefore, the blast of blue flame is supplied from the hot air supply chamber (4) to the downstream drying chamber (31j31) to dry the grains, and unlike the case of conventional red flames, it does not reduce the quality of the grains. The grains are dropped little by little into the receiving gutter with the rotation of the rotary valve (6): 6+, collected by the screw conveyor (8), and lifted by the elevator.
It is piled up in the humidity control tank (1). This circulation drying
After repeating this process about 6 times, the unhulled rice will be completely dry.

When performing such work, if the variety or quality of the grain or the outside temperature is abnormally high, only a small amount of blue flame will suffice, so the blue flame will be kept small. In order to reduce the size of the blue flame in this way, the amount of kerosene supplied to the diffuser C1 must be reduced, but in the present invention, 50)
(In the case of Z, a fixed amount of kerosene is always pumped up by an electromagnetic pump C!ω driven at 50 Hz, and the fuel is adjusted by opening the electromagnetic valve 24 with a voltage based on the on-time of the pulse signal).

In this case, the variable motor (41) and the burner control box are connected by a cord (4), and the electromagnetic valve 041 and the box (marked 2) are connected by a code (to). The on-time of the 041 pulse signal is adjusted by the box 0, and at the same time,
Since the control voltage for the variable motor (41) also changes in synchronization, although both can be adjusted in synchrony over a wide range, the adjustment may be disrupted due to variations in products such as electrical parts. In such a case, the conversion knob t2 (g) attached to the burner box 081 is rotated to adjust the voltage converter (a)), thereby correcting product variations.

In conventional vaporizing burners of drying apparatuses, the amount of fuel supplied is adjusted by changing the degree of opening and closing of a valve, or the amount of fuel supplied is adjusted by changing the rotation of a pump that supplies fuel. When using these methods, the range in which the flame of the vaporizing burner can be adjusted is narrow because the amount of fuel supplied cannot be varied linearly.

Therefore, if a blower with a rotation speed adjustment mechanism and a supply device with a kerosene supply calmness adjustment mechanism are attached to the vaporizing burner, and both adjustment mechanisms are adjusted in synchronization, the width of the blue flame will become wider.However, in the above case, The present invention was designed to meet the requirements of electrical appliances being free from harassment, and has been devised in this respect.
In a vaporizing burner that supplies kerosene and combustion air to a rotating heating arm (A) for combustion, the burner is equipped with a fuel adjustment mechanism that automatically adjusts the amount of kerosene supplied, and a fuel adjustment mechanism that supplies combustion air. Variable motor (41) of blower (46)
Since the vaporizing burner is characterized in that a motor adjustment mechanism is provided to adjust the rotation of the motor, and a regulator such as a voltage converter is attached to one or both of the regulator grooves, variations in electrical products can be prevented. Even if there is, it can be corrected, so a wide range of tuning adjustments can be made to the blue flame.

[Brief explanation of the drawing]

Figure 1 is a vertical front view of the grain drying device, Figure 2 is a cross-sectional plan view along ■-■, Figure 3 is a cross-sectional view of the inside of the ventilation tube, Figure 4 is a circuit diagram of the burnani air volume adjustment device, and Figure 5 is a block diagram. It is a diagram. Explanation of symbols (1) - Humidity control tank, (2) Funnel, (3) - Downstream drying room, (4) - Hot air supply room, (5) - Hot air exhaust room, (6) Rotary valve, (7) )...Gutter, (8
), Screw conveyor, (9) Ventilation tube, 0 Camphor... Exhaust tube, C1)... Fan, O2 blower tube, Hole/Hanger, 04... Small diameter part, 09 Opening at tip, Oe・Mounting plate, 071 motor, Oe
Through hole, θl/rotation axis, (a) - heating arm, C
2+1 Gap, clI・, Diffuser, Country 0 Kerosene supply pipe, C241・Solenoid valve, Q
Woo electromagnetic pump, (a)...Fuel tank, (5)...
・, dryer main control box, e... burner control box, C2! J Conversion knob, (to) OD... code,
C32 moisture meter, +31 elevator motor,
C34)...Base, 0■ Outer cylinder, ((2
) Connection blower tube, 07)... Opening, (to)...
Connection part, OI screw, (41 mounting plate,
(40 variable motor, (4Z■ code, (4
4)... Ventilation duct, (451... Rotating shaft, (46
1...Blower, (471・Rear wall, (481
・Inlet, (gasification chamber, 501, combustion plate, 6
1) - Ceramic heater - 152/ Combustion chamber, 53)
Waveform shaping circuit, 6 minutes amplifier, 65 pulse voltage conversion circuit, (a)... switching circuit, 57) integrating circuit, 6 mark buffer circuit, 69) amplifier circuit,
ノ0)...Motor control circuit, Ill...Input circuit section, +62...Set temperature call button, Planer...
・Pitching button, (641・Drying button, f3η・Rotary switch for setting grain type, ((to) Rotary switch for setting target moisture, -Sensor group, 60・
・AC/DC converter, 6υ/hot air temperature sensor, C2...
Outside temperature sensor, ffl/transmission circuit, 6a/
・Control/comparison calculation section, ff5)...Amplification section, σ
e...Display section, C1n1 (7 (to), amplifier section, decoy fuel electromagnetic valve output smoothing circuit, wire voltage converter, mater 1)...flame sensor, 12.flame sensor increase/width adjustment circuit, @moat・Motor rotation speed control circuit. Patent applicant Iseki No! Co., Ltd.

Claims (1)

[Claims] In a vaporizing burner that supplies kerosene and combustion air to a heating arm rotated by a motor for combustion, the burner includes a fuel adjustment mechanism that automatically adjusts the amount of kerosene supplied;
A vaporizing burner characterized in that a motor adjustment mechanism is provided to adjust the rotation of a variable motor of a blower that sends combustion air, and a regulator such as a Den-O converter is attached to one or both of the adjustment mechanisms.